Travel sites producing $0 so I bought an app

Would love to get your help and thoughts on this iPhone app https://apps.apple.com/us/app/id488704737

1. what techniques have you used that helped you gain traction on a) search b) referral
2. if possible please provide feedback on the core features 1. group management 2. group texting / email 3. remove duplicate contacts 4. deleting multiple contacts

Thank you so much